Train your mind in such a way so that it starts accepting all heart wrenching  events , problems , mistakes , blunders and failures  happening in our lives don't teach it to forget things because it wouldn't .
When we compel or make ourselves to forget all those little unfair things life becomes more worse. Our strategy and  focus should be accepting , forgiving and moving on . Try to forgive others but more importantly your own selves , sometimes we don't forgive ourselves or we are unable to ignore our those small blunders of past so we keep on torturing and  blaming ourselves .
Get lesson from mistake , accept it that being a human being doing mistakes is  in our blood .
Don't punish yourself again and again for unintentionally taking one step.

Life is beautiful when we start accepting it's hard realities.

(Zainab Malik )